Interactive USDA Gardening and Plant Hardiness Zone Map for Montana

Based on the 1990 USDA Hardiness Zone Map, this interactive version covers the state of Montana which ranges from USDA Zone 2b to USDA Zone 6a.

What are Hardiness Zones, Gardening Zones, Growing Zones and Plant Zones?

Hardiness Zones, Gardening Zones, Growing Zones and Plant Zones refer to defined geographic regions that can support specific plants, flowers and trees. The zones define a minimum range of temperatures that a plant or tree can survive safely in that zone. The most commonly used Hardiness Zones were defined by the USDA. The USDA provides a hard copy map that displays these zone throughout the US. The last update to this map covers minimum temperatures from 1961 to 1990. An updated map is currently in production, but has not been released yet. Plant Maps provides the only interactive version of the USDA hardiness zone map available on the internet.

Zone Maps for Adjacent States

Idaho Zone Map
North Dakota Zone Map
South Dakota Zone Map
Wyoming Zone Map

Zoom to Major Cities in Montana

Billings - USDA Zone 4b
Butte - USDA Zone 4a
Glendive - USDA Zone 3b
Great Falls - USDA Zone 4a
Helena - USDA Zone 4a
Missoula - USDA Zone 4a

Interactive Maps of Montana Native Plants Distribution Areas

Abies grandis - grand fir Map
Abies lasiocarpa - subalpine fir Map
Acer glabrum - Rocky Mountain maple Map
Alnus sinuata - Sitka alder Map
Alnus tenuifolia - thinleaf alder Map
Amelanchier alnifolia - western serviceberry Map
Betula papyrifera - paper birch Map
Cornus stolonifera - red osier dogwood Map
Crataegus douglasii - black hawthorn Map
Juniperus communis - common juniper Map
Larix occidentalis - western larch Map
Picea engelmannii - Engelmann spruce Map
Pinus contorta - lodgepole pine Map
Pinus monticola - western white pine Map
Populus tremuloides - quaking aspen Map
Populus trichocarpa - black cottonwood Map
Prunus emarginata - bitter cherry Map
Prunus virginiana - common chokecherry Map
Pseudotsuga menziesii - Douglas fir Map
Rhamnus purshiana - cascara buckthorn Map
Rhus glabra - smooth sumac Map
Salix bebbiana - Bebb willow Map
Salix exigua - coyote willow Map
Salix geyeriana - Geyer willow Map
Salix lasiandra - Pacific willow Map
Salix mackenzieana - Mackenzie willow Map
Salix scouleriana - Scouler willow Map
Sambucus glauca - blueberry elder Map
Sambucus melanocarpa - blackbead elder Map
Sorbus scopulina - Greene mountain ash Map
Taxus brevifolia - Pacific yew Map
Thuja plicata - western redcedar Map
Tsuga heterophylla - western hemlock Map